Compensating bearing for wheel spindles



P. STONER.

COMPENSATING BEARING FOH- WHEEL SPINDLES.

APPLICATION FILED NOV-18, 1920.

Pabtnted 0015.. M

llll||1 mmm@ lLullillllllllllllllllllll p for wheel spindles.

.ranza sroivnn, or warivnsnono,

\ enough to keep rie.

rianivsYLi/TANIA, assreavon To Laivnrs r.rooL oon:-

PANY, DF WAYNESBORO, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

7 coi/irnnsfrrine `isrninins ron WHEEL .sriivDL-ns.

`Application filed' November 18, 1920."

To all fio/7mm t may concern.: Be it known that l, PAUL S'roNnn, acitizen of the `United (States, residing `at lVaynesboro, in the county of Franklin and i `State of Pennsylvania,

have `invented cer`- tain new and usefulImprovements in Compensating Bearings foi- Wheel Spindles,` of which the followingis a specification.

said invention relates to compensating bearings `and more particularly to bearings grinding wheels7 bearings for the wheel spindle be tight speed without chattering or overheating.`

@ne object of this invention is'to provide means whereby any wear of the spindle or contacting bearing can easily be readjusted. Another object is to provide a sleeve which will compensateautomatically for the expansion ofthe spindle due to heating thereof. v

Referring to the accompanying drawings which areinade a part hereof and on 4which similar reference characters indicate similar o parts,

. Figure 1 is a vertical longitudinal section through a wheel and spindle constructed in `and 10b.

through the collar and accordance with my invention;

Figure, a fragmentary plan of a portion thereof Figure 3, an elevation on the line 33 of Figure 1, showing the balancing weight;

Figure 41;, a detail perspective of one of theweights; and

Figure 5, a detail perspective of one of` the split ring adjusting vents. i

`ln the drawings. the numeral 10 represenftsf lacasing having removable parts 101 A spindle 11 provided with tapered portions l2 and 29 is journaledlin the casing. o "f he hub portion 13 of a grinding wheel 14e"`is`inountedon 'tapered portion 1Q and secured between a flange 15 ofthe hub and an annular collar 1G.` Screwsl pass hold the wheel firmly, Mounted in an annular recess 18 in the face of the hub portion 13 are a set of counterbalancing weights 19 slotted as at 2O (Figure only."` The opposite side is provided with a threaded bore 9.1 cominuiiicating with the slot and terminating in a tapered portion 9.2,`

ln using high speed vit is necessary that ther the wheel in proper al'i'gn` nient and yet free enough `to allow high spindle `l1 is anceat that point while the thicker el) from one side S elial No. 424,906.

" said bore'21 adapted to receive a screw 23 tapered at its end to conform to the portion 22 of the weight. It can be readily understood that by forcing the tapered portion of `a screw against the tapered portion of its on by means of the nut 25 threaded on the end portion 26 ofthe spindle. A casing 27 provided with a removable cover 28 houses all of the wheel structure.

Adjacent the tapered `portion 12 of the an oppositely tapered portion 29` forming the long bearing surface. A. cylindrical bearing sleeve 30 provided with a tapered bore 31 surrounds this part of the shaft and is secured in the casing 10 by means of a pin 32. This pin engages the bearing sleeve 30 at its thickest portion which permits the sleeveto creep towards its thinner end when expanding from the heat caused lby friction, thereby maintaining a uniform bearing relation to the spindle whether running lhot or cold. It has been customary to hold sleeves, such as shown at tween their ends; In suoli prior constructions it is found that whenthe spindle is run at high speed both the spindle and bearing become heated andcxpand both transversely and longitudinally. The thicker part of the sleeve moving away from the smaller part of tglfiespingdle appears to increase the clearpart of the spindle binds against the thinner part of the' sleeve. `If the pin is placed at the thinner end of the `sleeve it is found that the bearing ruins hot, but if placed as shown at Figure 1 at the thick part of the sleeve the spindle may run at a very high speed without any deleterious effect, as

spindle compensate for each other and the relative position of the contactingisurfaces remains unchanged.

Mounted for longitudinal adjustment on the opposite end 33 of the spindle `11 is a sleeve-34C keyed to the spindle to revolve therewith, by means of av key rl`he outer surface of this sleeve 34 is tapered asat .'36

apparently j longitudinal expansion of the sleeve and the enter the flange to* and forms the short bearing surface for the spindle. This surface contacts with the inner tapered bore 37 of a bearing sleeve 38 secured within the casing 10 by means of a pin 39 similar in design and performing the same function for the short bearing that the pin 32 performs for the long bearing.

The intermediate portion of the spindle 1l carries a belt pulley 41 secured thereto by means of a set screw 42 locked in place by another screw 43. This portion is also threaded at the rear of the pulley for the reception of a split nut 44 which is slightly hollowed out at one side to receive a selfaligning washer 45 which in turn carries a thrust washer 46 bearing against one end of thev stationary bearing sleeve 38. The nut 44 is locked in place by a screw 40 located transversely of the slit in the' nut to draw its ends together.

The extreme end of the spindle l1 is threaded to receive a lock nut '47 which bears against the outer end of the sleeve 34, which is in turn threaded to receive a nut 4S similar to nut 44 and provided with a hollowed portion on one side to receive a self-aligning washer 49 which in turn carries a thrust washer 50 bearing against the opposite end of the sleeve 38 from the washer 46.

As it is the purpose of the loclr washers` 44, 47, and 48 to adjust the bearing mem* bers lengthwise of the shaft, they are calibrated on their peripheries to insure the same relative degree of movement of the spindle and bearings.

The operation of adjusting the bearings is as follows:

The adjustments for wear in these bearings are made independently, and if only one bearing requires adjustment, this can be made without disturbing the other bear* ing. For taking up wear on the long bearing, the pulley guard l0a and lock screw 43 are removed, the set-screw 42 is then backed off from the spindle, the pulley 41, being now free on the shaft, is moved over against the end of sleeve 30, which will permit access of a screw-driver and a spanner to the collar 44 and its screw 40. This collar is freed and rotated as many divisions of the calibrations as is necessary to make the adjustment required. The shield cap 10b is next removed and the collar 47 freed and turned to the right to the same extent as collar 44. These operations result in drawing the spindle l1 endwise, thus shifting the tapered portion in its bearing for taking up kthe wear without disturbing the adjustment of the sleeves 38 and 34.

The wear between sleeves 34 and 38 is taken up by means of the collars 47 and 43 in the following manner. Unscrew the collar 4S the proper number of divisions and then turn collar 47 to the right the same number of divisions which will shift the spindle sleeve 34 on the portion 33 of the spindle into the tapered portion 37 of the bearing.

My invention is not to be confined to the exact structure shown as it is understood that changes in `the form, proportions, sizes and minor details may he resorted to without departing from the spirit, or sacrificingr an of the advantages, of the invention.

laving thus fully described my said in vention, what T claim as new and desire to secure by Letters Patent, is:

l. In combination a tapered spindle, a supporting casing therefor, a tapered bearing between the spindle and the casing, and pins engaging registering openings in the bearing and casing to anchor the bearing at one end while permitting it to creep at the other end, substantially as set forth.

2. In combination a tapered spindle, a casing therefor having a cylindrical opcning, a sleeve fitting between the spindle and the casing, and pins engaging registering openings 1n the bearing and casing to anchor the sleeve at the thicker end while permitting it to creep at the thinner end, substantially as set forth.

3.111 combination a spindle, a tapered journal rotatable therewith, a casing surrounding the journal, an internally tapered bearing sleeve between the casing and journal and a stationary pin engaging the sleeve at one end to anchor said end to the casing, substantially as set forth.

4. A device of the class described comprising a easing, a spindle within said casing having one bearing surface formed inl tegral therewith and one bearing surface on a portion detachable therefrom, bearing sleeves surrounding said bearing surfaces and an anchoring pin at one end of each sleeve, the other end of the forward sleeve being free at all times to move along the spindle.

5. A device of the class described comprising a casing, a spindle within said casing, bearing sleeves for said spindle and a means in said casing adapted to anchor one end of each bearing sleeve and permit creeping of the other end thereof comprising pins engaging directly* with the casing and the sleeve, substantially as set forth.

6. A device of the class described comprising a casing, a spindle within said casing having formed integral therewith a tapered bearing surface, a detachable tapered bearing surface secured thereto, cylindrical bearing sleeves having tapered bores to receive said tapered bearing snrfaces and a pin passing through said casing and into the thick portion of each of the said bearing sleeves to permit of expansion thereof in one direction only, substantially as set forth.

"7. In combination a casing, a spindle within said casing, a tapering journal mem# ber secured to the spindle near one end, the spindle `having an oppositely tapered portion near the other end, internally tapered bearA ing sleeves separating the journal member and the tapered portion of the spindlefrom the `easing and means at the` thicker' end i of each bearing sleeve to permit longitudisubstantially as set forth.

`tapering devices and the nal expansion toward the thinner end only,

,8. In combination a casing, a spindle therein having a tapered portion, a journal i `member oppositely taperedand fixed to the spindle, bearing sleeves fitting between said casing and pins of said bearing prevent creepmgof said ends rela-- engaging' the thicker ends sleeves to tive to the casing, substantially as set forth,

i `interiorly,

"journal, a spindle with which said journal means on the spindle to limit 9. In a bearing, a fixed" sleeve tapered an oppositely tapered rotary journal; bearing ment, substantially as set forth. Y j 10. Ina bearing, a fixed sleeve tapered inj teriorly, an oppositely-tapered rotary journal, a spindle `with which said journal ro hates, and means to adjust to journal longitudinally of the sleeve comprising a nut threaded to the spindle and, bearing against an end ofthe sleeve, `and anut threaded on the spindle `and bearing; against an end of the journal, substantially as set forth.

11.1n combination a spindle having a tapered portion, a fixed bearing sleeve fitting closely thereabout pensatingmeans for the tapering engaging surfaces comprising a fixed internally ta `pered bearing sleeve surroundingl another `partof the spindle, a correspondingly tapered journal rotatable with the spindle,

means cooperating with the journal to adjust the spindle longitudinally thereof, and

means cooperating with the second' fixed fixed sleeve adapted and wear comsleeve to limit such movement of the spin-` dle, substantially as-set forth. l2. In combination a spindle having a tapered portion, a fixed bearing sleeve fitting closely thereabout and wear means therefor comprising a fixed internally tapered bearing vsleeve part of the journal, a correspondingly tapered journal rotatable with the spindle, means to hold the journal against movement into the sleeve, means to move the spindle through the sleeve, and means to limit the extent of such movement, substantially as set forth. f

13. In combination, a spindle having oppositely tapering surfaces, one being formed `on a journal separable from the spindle, Xed tapered bearing sleeves for saidtapering surfaces, a nut onthe spindlebearing against one end of a fiXedlsleeve, a nut also on the spindle bearing against an end of the journal, and a nuton the journal bearing against the opposite end of said fixed sleeve, substantially as set forth.

14. In combination, a spindle having oppositely tapering surfaces, one being formed `fixed tapered bearing sleeves for,` said tapering surfaces, a nut on the spindle bearing against one end of a fixed sleeve, a nut alsoon the spindlebearing against an end of the journal, a nut on the journal bearing against the opposite end of said fixed sleeve, each `of the nuts bearing againstthe fixed sleeve comprising a split threaded portion having a concave face, and a rocking member havinga convex face to engage said con cave face and a flat face to engage the sleeve, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at tVashington, D. C., this thirteenth day of lllovember,v A. D. `nineteen hundred and twenty.

\ PAUL STUNER. [n s] Witnesses: i

E. W. Bummeln,` i F, WQDAHN.

compensatingl surrounding another v `on a journalv separable from the spindle, 

